I also had a problem with the game with the latest patch quitting on me during first character creation, but I copied the binary from my desktop to the laptop, and figured it might just be that I hadn't installed from scratch or something I had modded...so i went to try the demo —*and here we are.

That might be Apple's new Gatekeeper Path Randomization / App Translocation stuff getting in the way. Some things you can try: 1) after installing, move the game with Finder to a different folder, 2) xattr -d com.apple.quarantine <FileName>